Guhring 9055100068000 Screw Machine Drill Bit 0.2677 in

Product Description

The GUHRING 9055100068000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to DIN 6537K standards, this bit features a 140-degree split point (SU type) with web thinning for reduced thrust and cleaner entry. The 6.80 mm (0.2677 inch) diameter is ground to a tight tolerance of +0.006 to +0.021 mm. Coolant-through capability makes it well suited for extended production runs where heat management is critical. Machinists, tool-and-die technicians, and CNC operators working in ferrous materials will find this a reliable production-grade tool.

This drill bit is rated for cast iron and steel workpieces, covering the most common materials found in machining, fabrication, and maintenance environments. The screw machine length profile — shorter than jobber length — provides added rigidity and reduced deflection in drill press, turret lathe, and CNC machining center applications. The 3xD flute-to-diameter ratio and parallel web configuration support consistent chip evacuation at typical production feed and speed settings. It is a single-piece, individually packaged bit intended for professional machining operations.

Key Features

• Solid carbide submicron-grade construction for extended tool life in ferrous materials
• 140-degree SU split point with web thinning reduces entry thrust and improves hole accuracy
• Coolant-through design supports high-speed production drilling with active heat and chip control
• Straight-cylindrical shank (8.00 mm) for secure seating in standard drill chucks and collets
• Conforms to DIN 6537K specification for dimensional consistency and interchangeability
• Coated finish for improved surface hardness and lubricity during cutting

Compatibility

Designed as an OEM-style production drill bit compatible with standard straight-shank drill chucks, ER collet systems, and toolholders accepting an 8.00 mm shank diameter, for use in cast iron and steel workpieces per Series 5510 specifications.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with carbide cutting tools. Secure the shank fully in a matched collet or drill chuck before operation and verify runout before engaging the workpiece. Carbide tooling is brittle — avoid side loading, interrupted cuts without appropriate feeds, or dropping the bit. Always follow machine tool manufacturer guidelines for spindle speed and feed rate when drilling cast iron or steel with coolant-through tooling.